Two new species of Peritropis Uhler from the Arabian Peninsula (Heteroptera: Miridae: Cylapinae)

6 Pages·2002·0.14 MB·English

by  Linnavuori, R

Genus Vol. 13 (2): 183-188 Wroc³aw, 30 VI 2002
Two new species of Peritropis UHLER from the Arabian Peninsula
(Heteroptera: Miridae: Cylapinae)
RAUNO LINNAVUORI1 and JACEK GORCZYCA2
1Saukkokuja 10, FIN-21220 Raisio, Finland, e-mail: [email protected]
2Department of Zoology, University of Silesia, Bankowa 9, 40-007 Katowice, Poland, e-mail:
[email protected]
ABSTRACT. Peritropis vanharteni from Yemen and P. wilsoni from Oman are
described. It is the second report of representatives of this genus from the Arabian
Peninsula. The dorsal habitus of the species are presented, the figures of the parameres
of the new species are also given.
Key words: entomology, taxonomy, new species, Heteroptera, Miridae, Cylapinae,
Peritropis, Arabian Peninsula.
INTRODUCTION
The genus Peritropis UHLER is one of the two genera of the subfamily Cylapinae
with the greatest number of species. Representatives of this genus are the most
numerous in Africa south of the Sahara, they occur also in Madagascar and the
Seychelles Islands. Twenty two species have been reported from these regions
(GORCZYCA 2000).
There is only one species of this genus – Peritropis maculicornis LINNAVUORI
et AL-SAFADI – known from the Arabian Peninsula. It has been described on the
basis of specimens collected in Oman and Yemen (LINNAVUORI & AL-SAFADI 1993).
There is also a single species – Peritropis selene LINNAVUORI – described on the
basis of specimens from Socotra (LINNAVUORI 1994).
In the material received by the senior author and collected in Yemen, there
were two species representing a new species of Peritropis. In the material which
the junior author borrowed from the Museum of Wales, there was a single, male
specimen from Oman, which also represented a new species of this genus. Both
184 RAUNO LINNAVUORI, JACEK GORCZYCA
species have a very characteristic coloration, unusual for the genus and rather
similar to the colour pattern of Rhinofulvius albifrons (REUTER). Their descrip-
tions are given below.
TAXONOMY
Peritropis vanharteni n. sp.
ETYMOLOGY
This species is dedicated to Dr. Antonius VAN HARTEN, Sana’a, for his continu-
ous work on insect fauna of Yemen.
TYPE MATERIAL
Holotype (male): Yemen, Al Kowd, 26-28. 8. 1999, A. van Harten [handwrit-
ten]; paratype (male):Yemen, Al Kowd, 9. 1999, van Harten, Al Haruri. The
holotype housed in Linnavuori’s collection, finally at the National Museums and
Galleries of Wales. The paratype in the collection of the Department of Zoology,
Silesian University, Katowice, Poland.
1. Peritropis vanharteni n. sp., holotype, dorsal habitus
TWO NEW SPECIES OF PERITROPIS 185
DIAGNOSIS
This species is similar to Peritropis linnavuori GORCZYCA, described from
Eritrea (GORCZYCA 2000), but it can be easily distinguished by scutellum with
white patches and the length of antennae.
DESCRIPTION
Male (female unknown). Body very small, elongate, pale with brown patches,
covered with pale setae. Length of body 2.55-2.6 mm, width 0.9 mm. Head white
with brown patches, vertex and clypeus with a few very small reddish spots.
Length of head 0.50 mm, width 0.62 mm, diameter of eye 0.15 mm. Antennae
inserted on distinct tubercles removed from the margin of eyes. First antennal
segment white at base, with a brown ring in the middle, then pale, clouded, slightly
thickened at apex. Second segment almost cylindrical, pale, clouded, covered with
dense, pale, protruding setae. Third and fourth segments clouded, very thin,
covered with long, protruding setae. Length of antennal segments in mm: 0.30:
1.0: 0.50: 0.60. Rostrum dark brown, long, reaching beyond metacoxae. Total
length of rostrum 1.80 mm, length of individual rostral segments not well visible
in the examined specimens.
Pronotum pale with dark brown patches, anterior lobe with a pair of slightly
raised calli. Posterior margin of pronotum with a distinct excavation (Fig. 1),
lateral margins and humeral angles slightly elevated. Length of pronotum 0.37
mm, length of the anterior margin 0.45 mm, lateral margins 0.50 mm, posterior
margin 0.97 mm. Mesoscutum and scutellum dark brown with small pale patches
slightly tinged with red, apex of scutellum dark brown.
Hemelytra pale at base, clavus with brown and pale patches. There are two
large, brown patches with small white dots in the middle of corium and two white
patches above cuneus. Cuneus dark brown, white at base and apex. Membrane pale
grey, venation hardly visible in the examined specimens.
Underside of body chestnut with white areas, abdomen reddish, forecoxae
brown, pale only at base and apex, meso- and metacoxae pale with a broad,
chestnut patch near base. Trochanters and basal part of femora pale, the rest of
femora dark brown, only with a subapical, white patch on inner side. Apex of
femora pale, tinged with pink, tibiae with a small, pink patch at base, then pale,
tarsi pale, two-segmented, second segment divided, claws with a very small,
hardly visible, subapical tooth (Fig. 8). Left paramere thin, curved, with a thin,
apical process, right paramere small (Figs 3-4 ).
DISTRIBUTION
Yemen.
186 RAUNO LINNAVUORI, JACEK GORCZYCA
Peritropis wilsoni n. sp.
ETYMOLOGY
This species is named in honour of Dr. Mike R. WILSON (National Museum of
Wales, Cardiff, Wales, UK).
TYPE MATERIAL
Holotype (male): Oman: Wadi Bari, Kharus, Foothills of Jebe«Akhdar, Ulyah.
Blom. 23° 11’ N 57° 40’ E, 18. X. 1990. m. v. light, M.D Gaiagher & J. C.
Deeming [handwritten]; NMW.Z, 1981-001.; Peritropis sp. [handwritten], det. G.
Stonedahl, 1993. Housed at the National Museum of Wales, Cardiff, Wales, UK.
DIAGNOSIS
This species is very similar to Peritropis vanharteni sp. nov. but differs from
it in bigger size, pale femora and the structure of parameres (Figs 5-6).
2. Peritropis wilsoni n. sp., holotype, dorsal habitus
TWO NEW SPECIES OF PERITROPIS 187
DESCRIPTION
Male (female unknown). Body rather small, elongate, covered sparingly with
pale setae, length of body 3.50 mm, width 1.32 mm. Head white with small brown
patches, vertex with a short, longitudinal sulcus in middle. Clypeus white with a
small dot, mandibular plate white with a few very small spots, maxillary plate and
buccula reddish brown. Antenniferous tubercle only slightly removed from the
margin of eye, first antennal segment almost cylindrical, white at base then slightly
darkened in middle, with a faint trace of red tinge in the apical part. Second
antennal segment almost cylindrical (Fig. 2), pale, clouded, covered with dense,
protruding setae, distinctly longer than diameter of the segment. Third segment
thin, darkened, covered with dense, long, protruding setae (at least in its basal
part, the rest of the segments broken in the examined specimen). Length of
antennal segments in mm: 0.35: 1.27. Rostrum pale brown, very long, reaching
almost the genital capsule, first segment pale, reddish at base. Length of segments
unmeasurable in the examined specimen.
3, 4, 8. Peritropis vanharteni n. sp. nov., paratype, 5-7. Peritropis wilsoni n. sp., holotype: - 3, 5 -
right paramere, 4, 6 – left paramere, 7 - foretarsi, 8 - metatarsi
188 RAUNO LINNAVUORI, JACEK GORCZYCA
Pronotum white with large, dark brown patches, anterior lobe of pronotum
with a pair of slightly raised calli. Posterior lobe of pronotum slightly tinged with
red, posterior margin with a distinct excavation (Fig. 2). Humeral angles and
lateral margins of pronotum slightly elevated. Length of pronotum 0.47 mm,
length of anterior margin 0.50 mm, lateral margins 0.57 mm, posterior margin 1.15
mm. Mesoscutum brown, slightly tinged with red, pale in the angles, with two
large, white patches and a few small dots. Scutellum dark brown with two white
patches, apex of scutellum dark brown.
Hemelytra white, partly translucent with brown patches. Apex of clavus and
middle part of embolium brown. There are two large brown patches contiguous
with the distal part of the claval suture. Cuneus dark brown, white and tinged with
red at base and apex. Membrane pale, translucent, venation pale, apex of the major
cell rounded.
Underside of body white and chestnut, mesoepisternum brown, slightly tinged
with red. Coxae white with a large reddish patch at base, trochanters and femora
white, femora with a broad, brown patch in the apical part, tibiae slightly tinged
with red at base, then pale brown, tarsi pale, two-segmented, the second segment
divided, claws with a very small, subapical tooth (Fig. 7). Parameres relatively
large (Figs 5-6), left paramere curved, with the thin apical process.
REMARK
Parameres have been slightly deformed during preparation.
DISTRIBUTION
Oman.
ACKNOWLEDGEMENTS
We would like to express our sincere thanks to Dr. Mike WILSON from the
National Museum of Wales, Cardiff, for the loan of the material.
REFERENCES
GORCZYCA, J., 2000. A systematic study on Cylapinae with a revision of the Afrotropical Region
(Heteroptera, Miridae). Wydawnictwo Uniwersytetu Œl¹skiego, Katowice, 176 pp.
LINNAVUORI, R. E., 1994. Heteroptera from Socotra. Entomol. Fenn. 5: 151-156.
LINNAVUORI, R. E., AL-SAFADI, M. M., 1993. New species of Miridae (Hemiptera, Heteroptera) from
Yemen. Entomol. Fenn. 4: 179-193.